<script src="../../resources/testharness.js"></script>
<script src="../../resources/testharnessreport.js"></script>
<style>
@keyframes anim {
  to { padding-top: 50px; }
}
input { animation: anim 1s; }
</style>
<input type="checkbox" id="target"></input>
<script>
test(function() {
  getComputedStyle(target);
}, 'This test passes if it does not crash.')
</script>